That would be friggin' amazing. That first time I see a tank shell bounce off and hit something else... ooooh yeah, that's gonna be some sexy stuff right there
Also, as for the radio stuff: I found a pretty cool mod called OpenFM. It basically lets you listen to any mp3/ pls internet radio station in-game, with volume fading depending on your proximity to the source. It's pretty neat, and it's all open source. Sadly they're just stationary blocks and not mobile, otherwise I'd just cruise around holding a boombox lol. Not sure if that would help or not, but if it would, you might want to check that out someday (I can't imagine car stereos is something that we'll see added anytime soon, but I wanted to toss that in there regardless).